Spring-hinge



2 Sheets-Sheet 1.

D. W. HOUSLEY.

SPRING HINGE.

Patented June 23,1885.

(ModeL) J ..m.\ i

(ModeL) 2 Sheets-Sheet 2.

D. W. HOUSLEY.

SPRING HINGE.

Patented J gne 23,1885.

V MIIIIIIIIIIIIIIIHY'M m 1 "\lllIIIII umyu H min UNITED STATES PATENT OFFICE.

DANIEL W HOUSLEY, OF CHICAGO, ILLINOIS.

SPRING-HINGE.

SPECIFICATION forming part of Letters Patent No. 320,789, dated June 23, 1885.

Application filed August 25, 1894.

scribed hereinafter with reference to the accompanying drawings, in which- Figure 1 represents a face view of a double or three leaf hinge in position on a jamb and door, the latter being open; Fig. 2, a like view of a single-acting or two-leaf hinge in the same position; Fig. 3, a horizontal section of the parts shown in Fig. 1, the door being closed, made as indicated by the broken line 1 1 in that figure; Fig. 4, a like section of the same, made as indicated by the broken line 2 2 in Fig. 1.; Fig. 5, alike section of the parts shown in Fig. 2, as indicated by the broken line4 4; Fig. 6, a vertical central section of the parts shown in Fig. 1, made as indicated by broken line 3 3 in Fig. 3; Fig. 7, a detail view of cylindrical plug G; Fig. 8, a detail view of the device E F; Fig. 9, a like view of aportion of leaf 1) of the three-leaf hinge, and Fig. 10 a like view of leaf 0 of same.

In the drawings, D indicates the center leaf of the hinge; C and O, the other two leaves; 0, the pintles of the hinge; a, b b, and 12, projecting eyes from the plates of the same.

The plates E, provided with vertical tubes F, are designed to support and secure the lower plugs or pintles, G, and two are required in a three-1eaf hinge and one only in a two-leaf hinge.

Each spiral spring in hinges of both kinds has its upper end to inclose a cylindrical projection, I, extending down from the lower end of the hinge to hold the spring in position, and that projection. is provided with a vertical groove, h, so that when the upper end of the wire of which the spring is made is bent inwardly it forms a hook, the end of which, in placing the spring in position,wil1 enter the groove and follow it up to the notch h in one side of the'groove and spring into it, and will there be confined by it against downward movement, while the upper side of the hook will abut against the lower end of the hinge,

(ModeL) which itself is spirally inclined in order to make a snug fit with the spring.

For the support of the lower ends of the springs I have devised a cylindrical plug, as shown in Fig. 7, which is provided with an annular flange, which is itself furnished with a series of holes for the insertion of a lever, by means of which the plug may be revolved. -In the body of the plug, just above the flange, is a series of recesses, d, of peculiar form, extending around it, and these are designed to receive the end of a pin adapted to hold the plug against revolving in the direction to unwind the spring by reason of the square shoulder presented on one side of the recesses, and to allow the points of the pin to slide out of one recess and into another by reason of a slope in the other sides of the recesses, as shown in Figs. 4 and 7, and thus allow the spring to be Wound up without removing the pin 6. The plug is also provided with a vertical groove, f, which at its lower end has a.

notch, f, in one side of it. The lower end of each spring, like the upper end,is bentinto the form of a hook, g, and in mounting the spring into position the point of the spring is forced down the groove to the lower end, where it springs into the notch f, which confines it against upward motion.

The lower ends of the springs being confined, as specified, to the plugs, then to increase or diminish their tension at any time it will only benecessary to remove the pin 0 from one of the holes (1, if such removal be necessary at all, and insert alever into any one of the holes in the flange 'in the plug, and revolve the same until the proper adjustment of tension be attained. I

It will be apparent that by my location and arrangement of the springs they may be made as long and as strong as may be necessary without increasing the weight or bulk of the hinge, length being most important, in order to secure true and uniform action as well as dura bility.

The flange upon the plug G, instead of being annular in form, may be polygonal to adapt it to being turned by a wrench.

What I claim as new, and desire to secure by Letters Patent, is-

1. In a three-leaf and double-acting hinge,

the central leaf thereof, provided with two downward projections, I, to serve as spring Seats and guides, in combination with spiral springs H, seated upon such proj eotions, substantially as described.

2. In a three-leaf double-acting hinge, the combination of the downwardly-proieating guides and seats Lthe cylindrical plugs G, extending upwardly, and the device composed of the plate E and vertical tube F, in one piece, substantially as and for the purpose described.

3. The central leaf of a three-leaf hinge, hav ing two downward projections, I, each pro vided with a vertical groove, 72, and a notch, h, adapted to guide and confine the springs H and lock them against revolving motion, substantially as described.

4. The device composed of the plate E and the tube F, in one piece, and fastened to the jamb and door, adapted to support the plug G, substantially as described.

5. The plug G, provided with a series of recesses, cl, constructed upon one side with in clined planes and upon the other with perpendicular shoulders, to the end that when a pin, 6, is inserted in one of them the plug may be revolved in the proper direction to wind up the spring, but not in the direction to un- .wind the same without removing the pin 6,

substantially as described.

DANIEL XV. HOUSLEY.

Vitnesses:

LOUIS N OLTING, \V. A. XVEED. 

